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locks; strict; comment @# @; 1.3 date 2021.05.20.19.21.13; author christos; state Exp; branches; next 1.2; commitid ICDlXx1evXgxbVTC; 1.2 date 2002.03.16.02.07.34; author christos; state Exp; branches; next 1.1; 1.1 date 2000.01.01.20.08.27; author christos; state Exp; branches; next ; desc @@ 1.3 log @Avoid crash on negative times Fix long -> time_t @ text @$NetBSD: patch-al,v 1.2 2002/03/16 02:07:34 christos Exp $ --- dates.c.orig 2021-05-20 15:01:53.692058779 -0400 +++ dates.c 2021-05-20 15:14:15.931558100 -0400 @@@@ -101,7 +101,7 @@@@ { long year, julian; - if (tym->tm_year < 100) + if (tym->tm_year < 1000) year = tym->tm_year + 1900; if (year < 69) year += 100; @@@@ -123,7 +123,7 @@@@ struct tm *T; char *tz; #if defined(SYSV) || defined(TIMEZONE) || defined(POSIX) - long x; + time_t x; (void) time(&x); T = localtime(&x); @@@@ -172,7 +172,7 @@@@ static char time_buf[30]; struct tm *T; register char *p = time_buf; - long x; + time_t x; if (!opts) return NULL; @@@@ -375,6 +375,11 @@@@ } if (Year > 1900) Year -= 1900; + else if (Year < 0) { + print("Unknown date format: %s\n", p); + return NULL; + } + if (!Month && (Month = month_to_n(month)) == -1) { print("bad month: %s\n", p); return NULL; @@@@ -413,6 +418,7 @@@@ char *Date, *Yr, *Mon, *Day, *Wkday, *Tm, *Zone, *ret_buf; { long gmt; + time_t tgmt; struct tm *T; char a_or_p, *p = ret_buf; @@@@ -420,7 +426,8 @@@@ (void) sscanf(Date, "%ld%3c%s", &gmt, Wkday, Zone); Wkday[3] = 0; gmt += getzoff(Zone); - T = gmtime(&gmt); + tgmt = gmt < 0 ? 0 : gmt; + T = gmtime(&tgmt); a_or_p = (T->tm_hour < 12)? 'a': 'p'; (void) sprintf(Yr, "%d", T->tm_year + 1900); @ 1.2 log @prevent death from mis-parsed negative year. @ text @d1 1 a1 1 $NetBSD: patch-al,v 1.1 2000/01/01 20:08:27 christos Exp $ d3 2 a4 2 --- dates.c.orig Fri Mar 15 21:01:54 2002 +++ dates.c Fri Mar 15 21:06:33 2002 d14 18 d44 18 @ 1.1 log @Y2K botch @ text @d1 1 a1 1 $NetBSD$ d3 2 a4 2 --- dates.c.orig Sat Jan 1 15:06:01 2000 +++ dates.c Sat Jan 1 15:06:07 2000 d14 12 @